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Suzuki, Kota Kudo, Masaki Fujita, Ryosuke Kadono, Shun Asano, Shunsaku Kitagawa, Takanori Taniguchi, Takashi Noji, Yoji Koike","submitted_at":"2019-04-16T09:05:21Z","abstract_excerpt":"We investigated the magnetism and superconductivity in as-sintered (AS) and oxidation annealed (OA) T*-type La$_{1-x/2}$Eu$_{1-x/2}$Sr$_x$CuO$_4$ (LESCO) with 0.14 $\\leq x \\leq$ 0.28 by the first comprehensive muon spin rotation/relaxation ($\\mu$SR), magnetic susceptibility, and electrical resistivity measurements. In OA superconducting samples, no evidence of magnetic order was observed, whereas AS semiconducting samples exhibited evidence of a disordered magnetic state in the measured temperature range between $\\sim$4 K and $\\sim$8 K. 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